Call of Duty: Modern Warfare 2 Walkthrough & Strategy Guide

Before the Russian checkpoint at Arcadia, locate the Garden Villas Apartment Building (north side of the street). There is a small security office for the apartment complex on the street. The laptop is in that security office.

At the Arcadia sheltered community's checkpoint (before the long covered bridge ... which is really an East Coast New England thing dating back to early colonial times in the Americas), check the southern security office for this laptop.

Cross the covered bridge with the Stryker into Arcadia. The second house on the right has this laptop on its second floor. The target house is next to the one with the AA guns.